Skip to main content

Ganymede in Visible and Infrared Light


Published


This montage compares New Horizons' best views of Ganymede, Jupiter's largest moon, gathered with the spacecraft's Long Range Reconnaissance Imager (LORRI) and its infrared spectrometer, the Linear Etalon Imaging Spectral Array (LEISA). LEISA observes its targets in more than 200 separate wavelengths of infrared light, allowing detailed analysis of their surface composition. The LEISA image shown here combines just three of these wavelengths -- 1.3, 1.8 and 2.0 micrometers -- to highlight differences in composition across Ganymede's surface. Blue colors represent relatively clean water ice, while brown colors show regions contaminated by dark material. The right panel combines the high-resolution grayscale LORRI image with the color-coded compositional information from the LEISA image, producing a picture that combines the best of both data sets. The LEISA and LORRI images were taken at 9:48 and 10:01 Universal Time, respectively, on February 27, 2007, from a range of 3.5 million kilometers (2.2 million miles). The longitude of the disk center is 38 degrees west. With a diameter of 5,268 kilometers (3,273 miles), Ganymede is the largest satellite in the solar system.


Mediatype image
Creator NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
Date 0000
Instrument LORRI, LEISA
Program New Horizons
Object Ganymede
Insightuid nasaNAS~4~4~19461~124365
Source http://photojournal.jpl.nasa.gov/catalog/PIA09356
What New Horizons
What Ganymede
What Moon
What Long Range Reconnaissance Imager
What Imager
What LORRI
What Infrared Spectrometer
What Spectrometer
What LEISA
Identifier PLAN-PIA09356
Addeddate 2009-11-03 04:14:26
Publicdate 2009-11-03 04:15:43


Reviews

There are no reviews yet. Be the first one to write a review.
Uploaded by
BonnieReal
on 11/3/2009
Views
5
PEOPLE ALSO FOUND
NASA Images
37
0
0
NASA Images
by NASA
619
0
0
NASA Images
by NASA
143
0
0
NASA Images
by NASA
121
0
0
NASA Images
by NASA
195
0
0
NASA Images
by NASA
56
0
0
Source: http://www.nasa.gov/mission_pages/oco/multimedia/gallery/09-02-18-3.html
NASA Images
by NASA
60
0
0
Source: http://www.nasa.gov/mission_pages/oco/multimedia/gallery/09-02-18-1.html